Zbigniew Cybulski as Jacek

Teresa Tuszyńska as Margueritte

Grażyna Muszyńska as Joasia

Barbara Baranowska as Girl at the Bar

Włodzimierz Bielicki as Jacek's Friend

Jacek Fedorowicz as Jurek

Roman Polanski as Romek

Eleonora Kałużyńska as Margueritte (voice)

Romuald Freyer as "Tik Tak" Actor

Tadeusz Wojtych as Zygmunt

Tadeusz Chyła as Tadek (uncredited)

Balbina Horska as Woman in a Church (uncredited)

Krzysztof Komeda as Pianist (uncredited)

Władysław Kowalski as Boy at an Exhibition (uncredited)

Adam Pawlikowski as Audience Member (uncredited)

Kazimiera Szałajska as Woman in a Church (uncredited)

Mieczysław Waśkowski as Horoscope Seller (uncredited)

Barbara Horawianka as Joasia (voice) (uncredited)